Ridge expander drill



FIG. 1 is a first perspective view of a first embodiment of a ridge expander drill according to my design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is an elevation view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a first perspective view of a second embodiment of a ridge expander drill according to my design;

FIG. 7 is a second perspective view thereof;

FIG. 8 is an elevation view thereof;

FIG. 9 is a top plan view thereof; and

FIG. 10 is a bottom plan view thereof.

FIG. 11 is a first perspective view of a third embodiment of a ridge expander drill according to my design;

FIG. 12 is a second perspective view thereof;

FIG. 13 is an elevation view thereof;

FIG. 14 is a top plan view thereof; and

FIG. 15 is a bottom plan view thereof.

FIG. 16 is a first perspective view of a fourth embodiment of a ridge expander drill according to my design;

FIG. 17 is a second perspective view thereof;

FIG. 18 is an elevation view thereof;

FIG. 19 is a top plan view thereof; and,

FIG. 20 is a bottom plan view thereof. 

The ornamental design for a ridge expander drill, as shown and described. 